From e58dd4381f30b0a3bb792cf3d64eea8d4127326c Mon Sep 17 00:00:00 2001
From: David Schulz <david.schulz@qt.io>
Date: Fri, 14 Apr 2023 14:15:08 +0200
Subject: [PATCH] Copilot: set the correct suggestion document for inline
 suggestions

Change-Id: Idbccf2eb68b4d1e2bd3751e851310cc74cac2694
Reviewed-by: Marcus Tillmanns <marcus.tillmanns@qt.io>
Reviewed-by: Artem Sokolovskii <artem.sokolovskii@qt.io>
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
---
 src/plugins/copilot/copilotsuggestion.cpp | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/plugins/copilot/copilotsuggestion.cpp b/src/plugins/copilot/copilotsuggestion.cpp
index de5660c02d1..28da286f1f7 100644
--- a/src/plugins/copilot/copilotsuggestion.cpp
+++ b/src/plugins/copilot/copilotsuggestion.cpp
@@ -9,6 +9,7 @@
 
 using namespace Utils;
 using namespace TextEditor;
+using namespace LanguageServerProtocol;
 
 namespace Copilot::Internal {
 
@@ -19,7 +20,14 @@ CopilotSuggestion::CopilotSuggestion(const QList<Completion> &completions,
     , m_currentCompletion(currentCompletion)
 {
     const Completion completion = completions.value(currentCompletion);
-    document()->setPlainText(completion.text());
+    const Position start = completion.range().start();
+    const Position end = completion.range().end();
+    QString text = start.toTextCursor(origin).block().text();
+    int length = text.length() - start.character();
+    if (start.line() == end.line())
+        length = end.character() - start.character();
+    text.replace(start.character(), length, completion.text());
+    document()->setPlainText(text);
     m_start = completion.position().toTextCursor(origin);
     m_start.setKeepPositionOnInsert(true);
     setCurrentPosition(m_start.position());